GD32F103RET6-I — GigaDevice
ARM Cortex-M3 MCU, 72MHz, 512KB flash, 64KB SRAM, LQFP64, industrial range -40..+85C

Category: MCU

Pricing
  LCSC         $2.35
  Mouser       $2.95
  DigiKey      $3.07
  Farnell      $3.29

Manufacturer: https://www.gigadevice.com